Here is an easy Descriptive Statistics Data Sufficiency Question What is the median of a set of 10 positive integers? 1. The numbers are in an AP with the first term being 10 2. The arithmetic mean of these 10 numbers is 55 Answer - Choice C Explanatory Answer Break down the process of solving any DS question into 3 mandatory steps and 1 optional step. Step 1 : … [Read more...] about Arithmetic Mean – Data Sufficiency

# GMAT Progressions

## GMAT Data Sufficiency – Statistics: Mean Median

This data sufficiency question tests your understanding of Inequalities and descriptive statistics.QuestionIs 'b' the median of 3 numbers a, b, and c?1. b/a = c/b2. ab < 0The correct answer is C. Both the statements together are sufficient to answer the question.Explanatory answerWhen the numbers a, b, and c are arranged in an ascending order, the middle number is the … [Read more...] about GMAT Data Sufficiency – Statistics: Mean Median

## Progressions – AP – Data Sufficiency

A data sufficiency question from Arithmetic Progression.QuestionWhat is the 6th term of the Arithmetic sequence?1. The sum of the 6th to the 12th term of the sequence is 77.2. The sum of the 2nd to the 10th term of the sequence is 108.Correct Answer : Choice B. Statement 2 alone is sufficient; statement 1 is not sufficient.Explanatory Answer We have to find the 6th term of an … [Read more...] about Progressions – AP – Data Sufficiency

## Descriptive Statistics, Prime Numbers, Progression

This GMAT practice question tests your understanding of 3 topics. The core topic tested is Descriptive Statistics. Basic understanding of Prime Numbers and Progressions is needed to solve this question. Question The ages of three friends are prime numbers. The sum of the ages is less than 51. If the ages are in Arithmetic Progression (AP) and if at least one of the ages is … [Read more...] about Descriptive Statistics, Prime Numbers, Progression